[CALL FOR TESTING] PPPoE restructuring and IPv6 improvements

[dseven]

I didn't try the first patch, but have just applied the new one(s). After a reboot, everything seems OK so-far. I get a /56 prefix via DHCPv6 over PPPoE, and have one LAN interface statically configured with a /64, and another tracking the WAN interface.

[dseven]

I just looked at my WAN interface configuration again, and I see that the "Use IPv4 connectivity" option is there. Isn't it supposed to disappear with these patches?

[doktornotor]

Not just yet.

[franco]

It's still there indeed. The exercise here is to get these test patches into 24.7.x and keep the breaking change(s) like the flag removal hidden on what is to become 25.1.


Cheers,
Franco

[doktornotor]

# opnsense-revert opnsense && opnsense-patch 3a9f98843b 182bab339a

Done and still working - same setup as described here.

[csutcliff]

# opnsense-revert opnsense && opnsense-patch 3a9f98843b 182bab339a

Working the same here too.

[dseven]

I had something odd happen overnight. I don't know if it's related to these patches, or just a coincidence.

I woke up in the middle of the night, and found that I had "no internet". I went to my office and looked at opnsense, which showed the PPPoE interface as red. Not fully awake, I tried to "reload" the interface (from the overview page). It ("the internet") didn't come back (I think the interface was still showing red), so I reboot, and then it did come back, and everything was OK again.

Now that I'm more (but probably still not 100%) awake, I'm looking in /var/log/ppps. It appears that there was some sort of outage lasting about 12 minutes (assuming something at ISP). After the 12 minutes, it looks like PPPoE reestablished (IPCP: LayerUP, with the correct assigned IPv4 address), but apparently not fully, as I had "no interrnet". A few hours later, I can see my attempt to reload the interface, which also looks like it reestablished OK, then finally my reboot.

If someone wants to look at logs, I can share them somewhere private...

[franco]

@dseven sure, send them to franco@opnsense.org but please also include the system log.


Thanks,
Franco

[franco]

PS: One thing this could be is https://github.com/opnsense/core/pull/7692 which is being shipped in 24.7.2 next week.

[dseven]

That seems like it probably fits. I think it was actually the gateway, not the interface, that was red (did I mention I wasn't fully awake?). Emailed logs anyway. Thanks!

[franco]

Yes, something about the default route here which goes through the gateway.

Was this a general issue or just IPv6? Because I can see IPv6 dropping out at some point not able to fix itself, but it seemed to recover IPv4. Or do I read this wrong?


Cheers,
Franco

[franco]

Made a 24.7.1 backport of the commit to try: https://github.com/opnsense/core/commit/09209149

# opnsense-patch 09209149


Cheers,
Franco

[dseven]

It was a general issue. I didn't actually try IPv6, but v4 was down. Had I been awake, I would have checked if I had a default route for v4 - I'm guessing probably not.

I think I need to try to reproduce the issue - perhaps in my current patch state, then revert the patches from this thread (to rule them out as the cause), then try the backport. I'll hopefully get to work on that later today.

[dseven]

I found that reloading the PPPoE interface (from "Overview") resulted in the interface being up but no v4 default route (until I restarted the gateway monitor, then it came back). After applying the backported patch, that's no longer an issue - the default route gets reinstated after the PPPoE interface comes up, as expected. I'm fairly confident that this is the fix, and it doesn't seem to have anything to do with the patches for this thread. Apologies for the noise, and thanks!

[franco]

Ok, nevertheless very nice to know that fix works